This particular episode of Aveyond is not intuitive at all !!
I have found that most excellent RPG's are designed specifically to test the players exploratory and memory retentive skills.
Don't let that put you off this brilliant game. There are many players here who will gladly help. If you will stop a moment to read the forum, you may find some of the answers that are currently frustrating you.
But back to the game.....look for a cave entrance and explore. Talk to everyone in town and remember (or write down) what they offer. Additional party members will join Rhen only after key requirements are met. You will be able to switch party members around after you have gained more than 4 companions.
Remember to
save often especially
before and
after winning battles or solving quests.
Remember to upgrade battle gear/weaponry as you acquire them.
The higher the experience levels of your characters, the stronger they become.
Many of the accepted quests in this game
cannot be resolved until far later in the game.

the best of luck to you all

......it took me over 90 hours to complete my first game as I didn't know of the developers fan based walkthrough !